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Buick Turbo Tech General technical support for the 86-87 Buick turbo cars |
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Thread Tools | Display Modes |
#1
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Anyone have an idea what is causing this leak? The valve covers and the intake are not leaking and it is above the head gasket. Could this be caused by a bad valve seal? The pic is taken looking up at the #5. Also, the spark plug is dry.
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#2
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Jack Cotton Cottons Performance 413-789-0531 |
#3
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Jack,
It's not the breathers, valve covers, intake or heads. All are completely dry. The oil appears to be coming from inside the exhaust header at #5. Could this be caused by a bad valve seal? |
#4
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I can't imagine the oil being that clean if it was traveling down a hot exh valve, and I can't see there being that much oil above the exh valve seal when the motor is not running. It seems like maybe there is a small crack in the head where the bolt threads in.
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'86 Gn with an RPE bullet. Almost everything else is from Cottons. 100% street car! |
#5
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Back of the intake??
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Brian Keep it shiny side up, but show them your dirty side once in a while. 11.3@123mph on 195/75/14" whitewalls. Yes, 195s! 11.2 on the big giant slicks. What's the point? Maybe I'll go back to the whitewalls. They are lighter and have less rolling resistance. |
#6
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No, everything is dry on top. |
#7
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Yank the DS header and see if there is any oil in the pipes.
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Brian Keep it shiny side up, but show them your dirty side once in a while. 11.3@123mph on 195/75/14" whitewalls. Yes, 195s! 11.2 on the big giant slicks. What's the point? Maybe I'll go back to the whitewalls. They are lighter and have less rolling resistance. |
#8
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What did you find Chris?
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'86 Gn with an RPE bullet. Almost everything else is from Cottons. 100% street car! |
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